Sploder, the game!

I edit: If you have played my game yet, you can try other levels in My Blog or in Sploder, where there are countless levels and where you can make your own!
Hi every body! Last day I saw this interesting game while surfing, and I thought it would be a great idea to make my own and share it with you.
Try to learn how to play with this little spacecraft.
Enjoy!^^

Help: Move the spacecraft with the arrow keys, and destroy the enemies using your weapons (z, x, c, v). There are two kind of games: the one in which you have to destroy all the enemies, and the other, in which you have to collect all the golden crystals (in this one, it is not necessary to kill all the enemies).